Ключевые слова: abc, africa, america, antarctic, arctic, art, artistic, asia, australia, background, blackboard, board, chalk, chalkboard, child, class, classroom, college, concept, continent, design, draw, drawing, earth, educate, education, europa, formation, geography, global, institute, international, learn, lesson, map, nature, planet, school, simple, studying, teach, teacher, text, travel, tudy, university, white, word, world, write,